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  1. gorgon

    9 bit converter in cupl

    I'm mot sure you can do this in an easy way, since each output only has 7 or 8 product terms. Is there a special reason you need to do this big task on a tiny chip? If I should do this with 'logic', I would use a couple of old eproms, like 27c16, and just program them with the correct...
  2. gorgon

    The Value of a Missing Resistor?

    I've no idea what 'trick question' you are talking about here. If 1A flows through R1, you'll have 6V over it. The current through R2 will be 1.5A, a total of 2.5A through in total. Rx need to bleed 4V at 2.5A to get a total of 10V, and should be fairly easy to compute with Ohms law.
  3. gorgon

    Object counting in conveyor

    If you use an active IR beam and a receiver, it could be that you count reflexes from the moving object or other objects. You should make some debounce code in your counter routine. Reading the input several times at defined intervals and compare a number of them to be the same before validating...
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